Horton

Re: [PATCH] Add native windows on arm64 support

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Niyas Sait <niyas.sait@linaro.org>
Cc: Andres Freund <andres@anarazel.de>, Tom Lane <tgl@sss.pgh.pa.us>, Thomas Munro <thomas.munro@gmail.com>, Julien Rouhaud <rjuju123@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-04-21T04:07:18Z
Lists: pgsql-hackers 
On Wed, Apr 20, 2022 at 10:43:06AM +0100, Niyas Sait wrote:
>> This issue is still lying around, and you may have been lucky.  Would
>> there be any issues to remove this change to get a basic support in?
>> As mentioned upthread, there is a long history of Postgres with ASLR.
> 
> MSVC linker doesn't allow non-random base addresses for Arm64 platforms.
> It is needed for basic support.

Why does it not allow that?  Is that just a limitation of the
compiler?  If yes, what is the error happening?  This question is not
exactly answered yet as of this thread.  I may be missing a reference
about that in the upstream docs, but I see nowhere an explanation
about the reason and the why.  That's also one of the first questions
from Thomas upthread.
--
Michael

Commits

  1. MSVC: Support building for AArch64.

  2. Remove "#ifdef WIN32" guards from src/port/win32*.c

  3. Adjust XML test case to avoid unstable behavior.

  4. Enable RandomizedBaseAddress (ASLR) on Windows with MSVC builds